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฿4,096+ Direct flights to Seoul

This is the cheapest price on a non-stop flight to Seoul found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/4. Fares are subject to change and may not be available on all flights or dates of travel.
— SEL
18 Apr — 25 Apr1
1 adult
1 adult, Economy, 0 bags

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Cheapest flights to Seoul
Explore the most affordable flight options available to Seoul. Find the lowest fares based on data from user searches, with prices last updated on 19 March 2026.

Wed 12/802:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Wed 26/812:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 14/3฿6,470
Wed 15/702:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Sat 22/812:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 18/3฿6,567
Tue 14/702:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Wed 19/812:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 18/3฿6,600
Tue 21/402:45
DMK
-
ICN
Nonstop5h 50m
Thai AirAsia X
Fri 24/411:55
ICN
-
DMK
Nonstop5h 40m
Thai AirAsia X
Deal found 15/3฿6,665
Wed 12/802:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Thu 27/812:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 14/3฿6,730
Mon 6/702:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Sun 19/712:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 16/3฿6,827
Thu 2/702:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Sun 19/712:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 16/3฿6,860
Thu 16/402:45
DMK
-
ICN
Nonstop5h 50m
Thai AirAsia X
Fri 24/411:55
ICN
-
DMK
Nonstop5h 40m
Thai AirAsia X
Deal found 15/3฿6,925
Wed 1/702:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Sun 5/712:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 15/3฿6,957
Thu 13/802:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Wed 26/812:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 14/3฿7,022
Fri 14/802:25
BKK
-
ICN
Nonstop5h 35m
Thai Vietjet Air
Mon 24/812:10
ICN
-
BKK
Nonstop5h 50m
Thai Vietjet Air
Deal found 15/3฿7,055
Fri 22/502:25
BKK
-
ICN
Nonstop5h 35m
Multiple Airlines
Mon 25/518:00
ICN
-
BKK
Nonstop6h 05m
Multiple Airlines
Deal found 16/3฿7,087

Best time to book a flight to Seoul

Have a flexible travel schedule? Discover the best time to fly to Seoul with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Fare Finder

 
Use the slider to find non-stop flights to Seoul within your budget. Price data is based on user searches made on Cheapflights. Over the past seven days, Cheapflights users made 17,341 searches and data was last updated on 19 March 2026.
Use the filters below to find and compare direct flights to Seoul that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Tue 21/4

02:45-10:35

Nonstop5h 50m

Incheon Intl

Fri 24/4

11:55-15:35

Nonstop5h 40m

฿6,795
Fastest return journey

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Sat 4/7

03:15-10:55

Nonstop5h 40m

Incheon Intl

Sun 5/7

13:30-17:10

Nonstop5h 40m

฿7,998

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Wed 27/5

03:15-10:55

Nonstop5h 40m

Incheon Intl

Mon 1/6

12:05-15:50

Nonstop5h 45m

฿8,290

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Fri 12/6

02:45-10:35

Nonstop5h 50m

Incheon Intl

Wed 17/6

12:05-15:50

Nonstop5h 45m

฿8,290

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Wed 1/7

03:15-10:55

Nonstop5h 40m

Incheon Intl

Sun 5/7

13:30-17:10

Nonstop5h 40m

฿8,290

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Mon 14/9

03:15-10:55

Nonstop5h 40m

Incheon Intl

Wed 30/9

12:05-15:50

Nonstop5h 45m

฿9,136

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Thu 28/5

03:15-10:55

Nonstop5h 40m

Incheon Intl

Tue 2/6

13:30-17:10

Nonstop5h 40m

฿9,168

BangkokIncheon

DMK - ICN

DMKICN

Bangkok Don Mueang Intl

Wed 1/7

03:15-10:55

Nonstop5h 40m

Incheon Intl

Fri 31/7

13:30-17:10

Nonstop5h 40m

฿10,111

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Mon 1/6

00:05-07:40

Nonstop5h 35m

Incheon Intl

Mon 8/6

18:00-22:05

Nonstop6h 05m

฿10,924

BangkokIncheon

BKK - ICN

BKKICN

Bangkok Suvarnabhumi

Thu 23/4

00:05-07:40

Nonstop5h 35m

Incheon Intl

Sun 7/6

18:00-22:05

Nonstop6h 05m

฿11,476

Flights are sorted by cheapest return flights first.

Deals found on 15/3

Showing 1-10 of 40 resultsSorted by cheapest first
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Reviews of airlines flying non-stop to Seoul

Get insights into the airlines that provide direct flights to Seoul. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seoul. Reviews last updated 19 March 2026.
Check out reviews from past customers who have flown Korean Air,AIR PREMIA, andThai Airways to South Korea to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very Good
1,205 reviews
Check prices

Comfort

8.3

Boarding

8.5

Overall

8.4

Food

8.1

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Korean Air
8.4
Very Good
1,205 reviews
Korean Air
8.4
Very Good
1,205 reviews
Check prices

Comfort

8.3

Boarding

8.5

Overall

8.4

Food

8.1

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
AIR PREMIA
8.2
Very Good
Korean Air
8.4
Very Good
1,205 reviews
Check prices

Comfort

8.3

Boarding

8.5

Overall

8.4

Food

8.1

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Thai Airways
7.8
Good
394 reviews
Korean Air
8.4
Very Good
1,205 reviews
Check prices

Comfort

8.3

Boarding

8.5

Overall

8.4

Food

8.1

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.
Thai Vietjet Air
6.6
Okay
119 reviews
Korean Air
8.4
Very Good
1,205 reviews
Check prices

Comfort

8.3

Boarding

8.5

Overall

8.4

Food

8.1

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Chris,Mar 2025

SEA - ICN

Was told the flight was overbooked so they selected only a few people to weight their bags and we were forced to check our luggage. We Once we got seated on the flight there were many seats vacant and our overhead bin was completely open. Both our luggage and our carryon were small. We had booked our tickets months in advance and we watched people carry two small suitcases on without one word to them. Am I upset?? Yes it was disappointing.

FAQ about direct flights to Seoul

Find answers to frequently asked questions about direct flights to Seoul to unlock the best deals on Cheapflights.

  • How much are direct flights to Seoul?

    On average, a one-way direct flight to Seoul will cost users approximately ฿13,739. If you're looking for a direct return flight to Seoul, you can expect to pay around ฿23,236.

  • Which airlines fly direct to Seoul?

    At the moment, Thai AirAsia X, Thai Airways, Thai Vietjet Air, AIR PREMIA, Korean Air, T'way Air, Air Busan, Jeju Air, Eastar Jet, Asiana Airlines offer direct flights to Seoul. Thai AirAsia X is currently the most popular airline that flies direct to Seoul.

  • What is the best time of year to fly direct to Seoul?

    If you're seeking the lowest price on a direct flight to Seoul, June is worth consideration, as prices are usually at their lowest, on average. February may be most appealing to users looking for the quietest time to visit Seoul, when demand is typically at its lowest.

  • What is the most popular direct flight origin to Seoul?

    Currently, the most popular direct flight origin to Seoul is Bangkok Suvarnabhumi Airport. A return direct flight from Bangkok Suvarnabhumi Airport to Seoul typically costs around ฿29,790.

See more FAQs

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